146. Which are the better conductors of heat, fluids or solids?

Generally speaking, solids, especially those of them that are dense in their substance.

147. Why are dense substances the best conductors of heat?

Because the heat more readily travels from particle to particle until it pervades the mass.

148. Why are fluids bad conductors of heat?

Because of the want of density in their bodies; and because a portion of the imbibed heat always passes off from fluids by evaporation.


"He casteth forth his ice like morsels: who can stand before his word,"—Psalm cxlvii.